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Old 07-19-2010, 09:03 PM   #8
Al-n-Sue
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Default 4WD vs AWD

Quote:
Originally Posted by Lesherp View Post
We are also wondering if there is an advantage to having 4WD for towing.
Keep in mind that technically 4WD is actually "part-time 4WD" as opposed to AWD (All Wheel Drive) which is permanent. The difference, at least on my Durango and most other SUVs and Pickups I know about is that 4WD means all 4 wheels are locked together and turn at the same RPM. Not a good thing on pavement. When not in 4WD the vehicle is only 2 wheel drive - some rear wheel (most pickups) and some front wheel (some SUVs).

AWD on the other hand means that the front and rear differentials and the transaxle allow all wheels to turn at different speeds.

So towing in 4WD would be something you only do on snow, ice, or loose 4WD roads. My AWD Durango gets essentially the same mileage at the 4WD version, which is 2WD unless engaged.

Alan
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